/* ==========================================================================
   RVVRLL® 官方网站样式  |  RVVRLL — 青岛途跃体育用品有限公司
   风格：黑橙运动科技风
   ========================================================================== */

:root {
  --bg: #0c0e11;
  --bg-2: #12151a;
  --panel: #181c23;
  --panel-2: #1e232c;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f3f5f8;
  --muted: #9aa3b2;
  --muted-2: #6d7684;
  --accent: #ff6a1a;
  --accent-2: #ff9247;
  --accent-dim: rgba(255, 106, 26, 0.14);
  --ok: #37c978;
  --warn: #ffb020;
  --danger: #ff4d4d;
  --radius: 14px;
  --radius-sm: 9px;
  --maxw: 1180px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue",
    Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 15.5px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

::selection { background: var(--accent); color: #fff; }

/* ---------- 顶部公告条 ---------- */
.topbar {
  background: linear-gradient(90deg, #b23c00, #ff6a1a 55%, #b23c00);
  color: #fff;
  font-size: 13px;
  text-align: center;
  padding: 7px 14px;
  letter-spacing: 0.4px;
}
.topbar a { text-decoration: underline; text-underline-offset: 3px; font-weight: 600; }

/* ---------- 导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 14, 17, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-in {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 68px;
}
.logo {
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-weight: 900;
  font-size: 25px;
  letter-spacing: 2.5px;
  font-family: "Arial Black", Arial, var(--font);
}
.logo b { color: var(--accent); }
.logo .reg { font-size: 11px; color: var(--muted); letter-spacing: 0; font-weight: 400; }
.logo-sub {
  font-size: 11px;
  color: var(--muted-2);
  letter-spacing: 1px;
  border-left: 1px solid var(--line-strong);
  padding-left: 10px;
  white-space: nowrap;
}

.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a {
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14.5px;
  font-weight: 500;
  transition: 0.18s;
  white-space: nowrap;
}
.nav a:hover { color: var(--text); background: var(--panel); }
.nav a.active { color: var(--accent-2); background: var(--accent-dim); }

.nav-tools { display: flex; align-items: center; gap: 10px; }

.lang-switch {
  display: flex;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
  font-size: 12.5px;
  font-weight: 600;
}
.lang-switch button {
  background: transparent;
  border: 0;
  color: var(--muted);
  padding: 6px 11px;
  cursor: pointer;
  font-family: var(--font);
}
.lang-switch button.on { background: var(--accent); color: #fff; }

.cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  color: var(--text);
  border-radius: 9px;
  padding: 7px 13px;
  font-size: 13.5px;
  cursor: pointer;
  font-family: var(--font);
  transition: 0.18s;
}
.cart-btn:hover { border-color: var(--accent); color: var(--accent-2); }
.cart-count {
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}
.cart-btn svg { width: 16px; height: 16px; }

.burger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.burger span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 2px; transition: 0.2s; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url("../img/hero-cycling.png") center 30% / cover no-repeat;
  filter: saturate(1.05);
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(10, 11, 14, 0.94) 8%, rgba(10, 11, 14, 0.72) 42%, rgba(10, 11, 14, 0.25) 78%),
    linear-gradient(0deg, var(--bg) 0%, transparent 26%);
}
.hero-in { position: relative; z-index: 2; padding: 90px 0; max-width: 660px; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--accent-2);
  border: 1px solid rgba(255, 106, 26, 0.4);
  background: rgba(255, 106, 26, 0.1);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 22px;
  font-weight: 600;
}
.hero h1 {
  font-size: clamp(38px, 5.6vw, 62px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: 1px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead { margin: 22px 0 32px; color: #c8cfd9; font-size: 17px; max-width: 540px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: 0.18s;
  font-family: var(--font);
  letter-spacing: 0.5px;
}
.btn-primary { background: linear-gradient(135deg, #ff6a1a, #ff8f3f); color: #fff; box-shadow: 0 10px 26px rgba(255, 106, 26, 0.32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(255, 106, 26, 0.42); }
.btn-ghost { background: rgba(255, 255, 255, 0.06); border-color: var(--line-strong); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-2); }
.btn-sm { padding: 9px 18px; font-size: 13.5px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; transform: none !important; }

/* ---------- 区块通用 ---------- */
section.block { padding: 78px 0; }
section.block.alt { background: var(--bg-2); }
.sec-head { max-width: 640px; margin-bottom: 44px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-tag {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}
.sec-head h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; line-height: 1.25; }
.sec-head p { color: var(--muted); margin-top: 12px; font-size: 15.5px; }

/* ---------- 品类卡 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.cat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 20px;
  transition: 0.2s;
  position: relative;
  overflow: hidden;
}
.cat-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: 0.2s;
}
.cat-card:hover { transform: translateY(-5px); border-color: rgba(255, 106, 26, 0.45); background: var(--panel-2); }
.cat-card:hover::before { opacity: 1; }
.cat-ico { font-size: 30px; margin-bottom: 14px; }
.cat-card h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 6px; }
.cat-card p { font-size: 13px; color: var(--muted); }
.cat-card .cnt { font-size: 12px; color: var(--accent-2); margin-top: 12px; display: block; font-weight: 600; }

/* ---------- 产品卡 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.prod-grid.g3 { grid-template-columns: repeat(3, 1fr); }
.p-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: 0.2s;
  position: relative;
}
.p-card:hover { transform: translateY(-6px); border-color: rgba(255, 106, 26, 0.45); box-shadow: var(--shadow); }
.p-media { position: relative; aspect-ratio: 1/1; overflow: hidden; background: #14171c; }
.p-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.p-card:hover .p-media img { transform: scale(1.05); }
.p-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: rgba(12, 14, 17, 0.82);
  border: 1px solid var(--line-strong);
  color: var(--accent-2);
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 100px;
  backdrop-filter: blur(6px);
}
.p-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.p-cat { font-size: 12px; color: var(--muted-2); letter-spacing: 1px; }
.p-name { font-size: 15.5px; font-weight: 700; line-height: 1.45; }
.p-name a:hover { color: var(--accent-2); }
.p-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 10px; }
.p-price { font-size: 19px; font-weight: 800; color: var(--accent); }
.p-price small { font-size: 12px; color: var(--muted); font-weight: 400; margin-left: 2px; }
.add-btn {
  background: var(--accent-dim);
  border: 1px solid rgba(255, 106, 26, 0.4);
  color: var(--accent-2);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font);
  transition: 0.18s;
  white-space: nowrap;
}
.add-btn:hover { background: var(--accent); color: #fff; }
.add-btn.done { background: var(--ok); border-color: var(--ok); color: #fff; }

/* ---------- 特性 ---------- */
.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.feat .fi { width: 46px; height: 46px; border-radius: 12px; background: var(--accent-dim); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 16px; }
.feat h3 { font-size: 16px; margin-bottom: 8px; }
.feat p { font-size: 13.5px; color: var(--muted); }
.feat .n { font-size: 34px; font-weight: 900; color: var(--accent); line-height: 1; margin-bottom: 10px; }
.feat .n small { font-size: 15px; color: var(--muted); font-weight: 600; }

/* ---------- 商标声明横幅 ---------- */
.tm-strip {
  background: linear-gradient(120deg, #1a1008, #241206 45%, #120c06);
  border: 1px solid rgba(255, 106, 26, 0.3);
  border-radius: var(--radius);
  padding: 30px 34px;
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}
.tm-strip .mark { font-size: 34px; }
.tm-strip h3 { font-size: 18px; margin-bottom: 6px; }
.tm-strip p { color: var(--muted); font-size: 14px; }
.tm-strip .btn { margin-left: auto; }

/* ---------- 品牌页 ---------- */
.page-hero {
  position: relative;
  padding: 74px 0 64px;
  background: radial-gradient(1100px 420px at 20% 0%, rgba(255, 106, 26, 0.13), transparent 60%), var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { font-size: clamp(30px, 4vw, 44px); font-weight: 900; margin-top: 10px; }
.page-hero p { color: var(--muted); margin-top: 14px; max-width: 720px; }
.breadcrumb { font-size: 13px; color: var(--muted-2); }
.breadcrumb a:hover { color: var(--accent-2); }

.alert {
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 14px;
  border: 1px solid;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.alert .ai { font-size: 18px; line-height: 1.3; }
.alert-warn { background: rgba(255, 176, 32, 0.08); border-color: rgba(255, 176, 32, 0.35); color: #ffd88a; }
.alert-danger { background: rgba(255, 77, 77, 0.07); border-color: rgba(255, 77, 77, 0.32); color: #ffb3b3; }
.alert-info { background: var(--accent-dim); border-color: rgba(255, 106, 26, 0.35); color: #ffc49e; }

.tm-table-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); }
.tm-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 720px; }
.tm-table th {
  text-align: left;
  background: var(--panel-2);
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: 1px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line-strong);
  font-weight: 600;
  white-space: nowrap;
}
.tm-table td { padding: 15px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tm-table tr:last-child td { border-bottom: 0; }
.tm-table .tm-name { font-weight: 800; font-size: 15.5px; letter-spacing: 1px; }
.table-scroll { overflow-x: auto; }

.tag { display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 100px; white-space: nowrap; }
.tag-ok { background: rgba(55, 201, 120, 0.13); color: var(--ok); border: 1px solid rgba(55, 201, 120, 0.35); }
.tag-pending { background: rgba(255, 176, 32, 0.12); color: var(--warn); border: 1px solid rgba(255, 176, 32, 0.32); }
.tag-op { background: rgba(255, 77, 77, 0.1); color: #ff8080; border: 1px solid rgba(255, 77, 77, 0.3); }

.two-col { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 34px; align-items: start; }
.brand-visual {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  position: sticky;
  top: 96px;
}
.brand-visual img { width: 100%; }
.brand-visual figcaption { padding: 12px 16px; font-size: 12.5px; color: var(--muted-2); background: var(--panel); }

.check-list li { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--line); font-size: 14.5px; }
.check-list li:last-child { border-bottom: 0; }
.check-list .ck { color: var(--accent); font-weight: 900; }
.check-list b { color: var(--text); }

.spell-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.spell {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px 12px;
  text-align: center;
  font-family: "Arial Black", Arial, sans-serif;
  letter-spacing: 2px;
  font-size: 17px;
  background: var(--panel);
}
.spell.good { border-color: rgba(55, 201, 120, 0.5); color: var(--ok); background: rgba(55, 201, 120, 0.06); }
.spell.bad { border-color: rgba(255, 77, 77, 0.45); color: #ff8080; background: rgba(255, 77, 77, 0.05); position: relative; }
.spell.bad::after { content: "✕"; position: absolute; top: -9px; right: -7px; background: var(--danger); color: #fff; width: 22px; height: 22px; border-radius: 50%; font-size: 12px; display: flex; align-items: center; justify-content: center; font-family: var(--font); }
.spell small { display: block; font-family: var(--font); font-size: 11.5px; letter-spacing: 0; margin-top: 5px; color: var(--muted); font-weight: 400; }

.verify-box { background: var(--panel); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 28px; }
.verify-box h3 { font-size: 18px; margin-bottom: 8px; }
.verify-box > p { color: var(--muted); font-size: 13.5px; margin-bottom: 18px; }
.verify-row { display: flex; gap: 10px; }
.verify-row input {
  flex: 1;
  background: var(--bg-2);
  border: 1px solid var(--line-strong);
  color: var(--text);
  border-radius: 9px;
  padding: 12px 15px;
  font-size: 14.5px;
  font-family: "Consolas", monospace;
  letter-spacing: 1px;
}
.verify-row input:focus { outline: none; border-color: var(--accent); }
.verify-result { margin-top: 14px; font-size: 13.5px; display: none; }
.verify-result.show { display: block; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; font-weight: 600; }
.field label i { color: var(--accent); font-style: normal; }
.field input, .field textarea, .field select {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  color: var(--text);
  padding: 12px 14px;
  font-size: 14.5px;
  font-family: var(--font);
  transition: 0.15s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255, 106, 26, 0.15); }
.field textarea { min-height: 110px; resize: vertical; }

/* ---------- 询价车 ---------- */
.cart-layout { display: grid; grid-template-columns: 1.4fr 0.9fr; gap: 30px; align-items: start; }
.cart-list { display: flex; flex-direction: column; gap: 14px; }
.cart-item {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  align-items: center;
}
.cart-item img { width: 92px; height: 92px; object-fit: cover; border-radius: var(--radius-sm); }
.cart-item h4 { font-size: 14.5px; margin-bottom: 4px; }
.cart-item .ci-price { color: var(--accent); font-weight: 700; font-size: 14px; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden; margin-top: 8px; }
.qty button { background: var(--panel-2); border: 0; color: var(--text); width: 30px; height: 30px; cursor: pointer; font-size: 16px; }
.qty button:hover { background: var(--accent); }
.qty input { width: 46px; text-align: center; background: transparent; border: 0; color: var(--text); font-size: 14px; }
.ci-remove { background: none; border: 0; color: var(--muted-2); cursor: pointer; font-size: 18px; padding: 6px; }
.ci-remove:hover { color: var(--danger); }

.empty-state { text-align: center; padding: 70px 20px; color: var(--muted); }
.empty-state .e-ico { font-size: 46px; margin-bottom: 14px; }

.summary-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; position: sticky; top: 96px; }
.summary-card h3 { font-size: 17px; margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.sum-row { display: flex; justify-content: space-between; font-size: 14px; color: var(--muted); padding: 6px 0; }
.sum-row.total { color: var(--text); font-weight: 700; font-size: 16px; border-top: 1px dashed var(--line-strong); margin-top: 8px; padding-top: 12px; }
.sum-note { font-size: 12.5px; color: var(--muted-2); margin-top: 14px; line-height: 1.6; }

.order-out {
  margin-top: 16px;
  background: var(--bg-2);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 16px;
  font-size: 12.5px;
  font-family: "Consolas", monospace;
  white-space: pre-wrap;
  color: #cdd5df;
  display: none;
  max-height: 260px;
  overflow: auto;
}
.order-out.show { display: block; }

/* ---------- 详情页 ---------- */
.pd-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.pd-media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--panel); }
.pd-info h1 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; line-height: 1.3; margin: 10px 0 14px; }
.pd-price { font-size: 30px; font-weight: 900; color: var(--accent); margin: 16px 0 4px; }
.pd-price small { font-size: 14px; color: var(--muted); font-weight: 400; }
.pd-meta { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0; }
.pd-desc { color: #c4ccd6; font-size: 14.5px; margin: 18px 0; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 18px 0; }
.spec-table td { padding: 11px 14px; border-bottom: 1px solid var(--line); }
.spec-table td:first-child { color: var(--muted); width: 130px; }
.pd-actions { display: flex; gap: 12px; align-items: center; margin-top: 22px; flex-wrap: wrap; }
.tm-note { margin-top: 22px; }
.pd-gallery { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.pd-gallery-item { display: block; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--panel); aspect-ratio: 1 / 1; }
.pd-gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.3s; }
.pd-gallery-item:hover img { transform: scale(1.04); }

/* ---------- 关于页 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.about-grid img { border-radius: var(--radius); border: 1px solid var(--line); }
.about-copy h2 { font-size: 28px; font-weight: 800; margin-bottom: 16px; }
.about-copy p { color: var(--muted); margin-bottom: 14px; font-size: 15px; }
.info-table { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.info-table td { padding: 14px 18px; border-bottom: 1px solid var(--line); }
.info-table tr:last-child td { border-bottom: 0; }
.info-table td:first-child { color: var(--muted); width: 180px; }

.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--accent), transparent); }
.tl-item { position: relative; padding-bottom: 26px; }
.tl-item::before { content: ""; position: absolute; left: -27px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); }
.tl-item .yr { color: var(--accent); font-weight: 800; font-size: 15px; }
.tl-item h4 { font-size: 15.5px; margin: 3px 0 4px; }
.tl-item p { font-size: 13.5px; color: var(--muted); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 44px; }
.c-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.c-card .ci { font-size: 26px; margin-bottom: 12px; }
.c-card h3 { font-size: 15.5px; margin-bottom: 6px; }
.c-card p { color: var(--muted); font-size: 14px; word-break: break-all; }
.c-card .ph { color: var(--warn); font-size: 12.5px; margin-top: 8px; }

/* ---------- 页脚 ---------- */
.footer { background: #08090b; border-top: 1px solid var(--line); padding: 60px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 34px; padding-bottom: 40px; }
.footer h4 { font-size: 14px; letter-spacing: 1px; margin-bottom: 16px; color: var(--text); }
.footer p, .footer li { color: var(--muted-2); font-size: 13.5px; padding: 4px 0; }
.footer a:hover { color: var(--accent-2); }
.footer .f-logo { font-size: 22px; font-weight: 900; letter-spacing: 2px; font-family: "Arial Black", Arial, sans-serif; margin-bottom: 12px; }
.footer .f-logo b { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--line); padding: 20px 0; font-size: 12.5px; color: var(--muted-2); display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translate(-50%, 20px);
  background: var(--panel-2);
  border: 1px solid rgba(255, 106, 26, 0.5);
  color: var(--text);
  padding: 13px 24px;
  border-radius: 100px;
  font-size: 14px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: 0.25s;
  z-index: 300;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 筛选 ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 34px; }
.chip {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  color: var(--muted);
  border-radius: 100px;
  padding: 9px 20px;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--font);
  transition: 0.15s;
  font-weight: 600;
}
.chip:hover { color: var(--text); }
.chip.on { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 1020px) {
  .prod-grid, .prod-grid.g3 { grid-template-columns: repeat(3, 1fr); }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .two-col, .cart-layout, .pd-layout, .about-grid { grid-template-columns: 1fr; }
  .brand-visual { position: static; }
  .summary-card { position: static; }
  .logo-sub { display: none; }
}

@media (max-width: 760px) {
  .nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0; right: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--line-strong);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 18px 18px;
    gap: 4px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 10px; font-size: 15.5px; }
  .burger { display: block; margin-left: auto; }
  .nav-tools { margin-left: 0; }
  .header-in { gap: 12px; }
  .hero { min-height: 520px; }
  .prod-grid, .prod-grid.g3 { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .pd-gallery { grid-template-columns: repeat(3, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .tm-strip { padding: 22px; }
  .tm-strip .btn { margin-left: 0; width: 100%; }
  .section { padding: 54px 0; }
  .verify-row { flex-direction: column; }
  .cart-item { grid-template-columns: 72px 1fr; }
  .cart-item img { width: 72px; height: 72px; }
  .pd-actions .btn { width: 100%; }
}

@media (max-width: 420px) {
  .prod-grid, .prod-grid.g3 { grid-template-columns: 1fr; }
  .spell-grid { grid-template-columns: 1fr 1fr; }
}